K'Nex Forces, Energy & Motion Kit

442 K'NEX Rods and Connectors plus 2 battery motors, 2 flywheel motors, and 4 transparent spring motors included. Instructions to build 11 models; 4 of most can be built simultaneously (2 each of battery and flywheel racers) using the color-coded building instruction books (4 sets). Comprehensive Teacher's guide with 7 inquiry-based lesson plans. Packed in a strong, stackable storage case with snap-on-lid. Supports 8-12 students working in teams of 2-3.

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